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File.Create Method (String, Int32, FileOptions)

Creates or overwrites the specified file, specifying a buffer size and a FileOptions value that describes how to create or overwrite the file.

Namespace: System.IO
Assembly: mscorlib (in mscorlib.dll)

'Declaration
Public Shared Function Create ( _
	path As String, _
	bufferSize As Integer, _
	options As FileOptions _
) As FileStream
'Usage
Dim path As String
Dim bufferSize As Integer
Dim options As FileOptions
Dim returnValue As FileStream

returnValue = File.Create(path, bufferSize, options)
public static FileStream Create (
	String path, 
	int bufferSize, 
	FileOptions options
)
public static function Create (
	path : String, 
	bufferSize : int, 
	options : FileOptions
) : FileStream
Not applicable.

Parameters

path

The name of the file.

bufferSize

The number of bytes buffered for reads and writes to the file.

options

One of the FileOptions values that describes how to create or overwrite the file.

Return Value

A new file with the specified buffer size.

Exception typeCondition

UnauthorizedAccessException

The caller does not have the required permission.

-or-

path specified a file that is read-only.

-or-

Encrypted is specified for options and file encryption is not supported on the current platform.

ArgumentException

path is a zero-length string, contains only white space, or contains one or more invalid characters as defined by InvalidPathChars.

ArgumentNullException

path is a null reference (Nothing in Visual Basic).

PathTooLongException

The specified path, file name, or both exceed the system-defined maximum length. For example, on Windows-based platforms, paths must be less than 248 characters, and file names must be less than 260 characters.

DirectoryNotFoundException

The specified path is invalid (for example, it is on an unmapped drive.

IOException

An I/O error occurred while creating the file.

NotSupportedException

path is in an invalid format.

UnauthorizedAccessException

The caller does not have the required permission.

-or-

path specified a file that is read-only.

UnauthorizedAccessException

The caller does not have the required permission.

-or-

path specified a file that is read-only.

The path parameter is permitted to specify relative or absolute path information. Relative path information is interpreted as relative to the current working directory. To obtain the current working directory, see GetCurrentDirectory.

This method is equivalent to the FileStream(String,FileMode,FileAccess,FileShare,Int32) constructor overload. If the specified file does not exist, it is created; if it does exist and it is not read-only, the contents are overwritten.

By default, full read/write access to new files is granted to all users. The file is opened with read/write access and must be closed before it can be opened by another application.

For a list of common I/O tasks, see Common I/O Tasks.

  • FileIOPermission  for permission to read and write to the file described by the path parameter. Associated enumerations: Read , Write Security action: Demand.

Windows 98, Windows Server 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0

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